Measurement E151M3613

Experiment:	EG4
Year:	2016	Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
Spokesperson:	Xiaochao Zheng
Reaction:	ep → π⁺n
Polarization:	beam (longitudinal), target (longitudinal)
Quantity:	A_LU
ε_L:	0.1438
Q²:	0.348 GeV²
W:	1775.0 GeV
E_beam:	2.999 GeV
ε:	0.8046

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.85	78.0	-0.3668	0.2312	0.0309
0.85	90.0	0.4838	0.2332	0.0315
0.85	102.0	-0.1049	0.2698	0.0301
0.85	186.0	0.4177	0.2665	0.0311
0.85	198.0	0.1018	0.2767	0.0301
0.95	234.0	-0.2621	0.2457	0.0305
0.95	246.0	0.0553	0.2289	0.03
0.95	258.0	0.0279	0.272	0.03

CLAS Physics Database